How to install SISAL version 14.0.6 on Ubuntu 12.04 LTS (Precise Pangolin):

Download SISAL from SourceForge and unzip it (tar -xvf sisal.14.0.6.tgz).

Go to the extracted directory (e.g. cd sisal.14.0.6/).

Issue the configure script to make sure your system has all necessary libraries (./configure).

As a super user, a.k.a. root, issue the compilation and installation command (sudo make).
— If you get the following compilation error:/usr/bin/gcc -g -I/home/xeirwn/Downloads/sisal.14.0.6/Include -c -o sisal.o sisal.c
sisal.c:2013:20: error: conflicting types for ‘getline’
/usr/include/stdio.h:675:20: note: previous declaration of ‘getline’ was here
Then you need to edit the file sisal.14.0.6/Frontend/Front1/sisal.c and replace all instances of getline function with something else like getlinelocal.
When you are done re-issue the sudo make command and wait.

Once completed, write in a *.sis file some SISAL application (lets say program1.sis) and issue the following command sisalc program1.sis.

The command will produce a file named s.out, that is your execution binary.